This dog shampoo is one of our 'first recommendations' whenever we are asked 'What shampoo do you recommend for our pet?' As one of the '4 oils' range it was formulated with direct input from professional groomers. The range contains five 100% essential oils. (We added the fifth after naming the range). Do be aware of other shampoos that use less oil, with less benefit to your dog. The range is an exceptionally good cleansing shampoo and conditioner in one, with the addition of five essential oils. Eucalyptus – Anti Bacterial, Lemongrass – Insect Repellent, Citronella – Insect Repellent, Tea Tree – Anti-fungal, Anti-Bacterial and Lemon – Calming and Relaxant.